Morgan Rielly and Alex Galchenyuk also scored for the Maple Leafs, who are 6-3-1 in their last 10 and continue to top the NHL’s North Division.

Joakim Nordstrom and Andrew Mangiapane scored for the Flames, who are 2-8-0 in their last 10 and 5-8-0 since Darryl Sutter took over as head coach.

Calgary trails the Montreal Canadiens, holding down the fourth and final playoff spot in the division, by six points.

Rittich made initial saves on William Nylander and Tavares, but the rebound went off Noah Hanifin’s skate and into Calgary’s net.

When the Flames were unable to get out of their own zone cleanly, Rielly took advantage of a turnover and scored on Toronto’s first shot on net 58 seconds after puck drop.

The defenseman skated the puck to the far faceoff circle and beat Rittich with a wrist shot over the Calgary goaltender’s left shoulder.